Filter Media

(111 results)
Top Fin® Large Power Filter Cartridges for Fish Tanks - 12 Count
(300)
$17.99
$18.99
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® PF-S Silenstream Aquarium Filter Cartridges - 3-12 Count
2 sizes
(244)
$9.59
$18.99
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+ 1 more
Top Fin® Silenstream™ Small Filter Cartridges for Fish Tanks - 6 Count
(67)
$9.99
$15.99
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+ 2 more
Top Fin® Element EF-S Filter Cartridges for Fish Tanks - 3-12 Count
3 sizes
(388)
$6.99
$15.99
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+ 1 more
Seachem® Purigen® Premium Synthetic Absorbent - Aquarium Filter Media
2 sizes
(68)
$9.89
$12.99
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Fluval AC20 Power Filter - Aquarium Filter Media for Fish Tanks
(12)
$41.99
$45.99
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Top Fin® Silenstream™ Large Filter Cartridges for Fish Tanks - 6 Count
(137)
$17.59
$15.99
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Top Fin® Retreat™ RF-L Filter Cartridges for Fish Tanks - 6 Count
(109)
$15.99
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Marineland® Penguin Rite Size C Power Filter Cartridges for Fish Tank Filters
(84)
$19.97
$24.99
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+ 2 more
Top Fin® CN-S Corner Filter Cartridges for Fish Tanks - 3-6 Count
2 sizes
(52)
$8.99
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Top Fin® Internal Filter Cartridges - IF-S for Fish Tanks - 10 Gallon
(36)
$7.99
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FLUVAL Active Carbon Insert 3-Pack - Aquarium Filter Media for Fish Tanks
3 sizes
(16)
$6.99
$7.99
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Top Fin® Silenstream Filter Cartridge for Fish Tanks - 3 Count
(122)
$9.89
$8.99
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Top Fin® Internal Filter Cartridges - IF-M for Fish Tanks - 20 Gallon
(25)
$7.99
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FLUVAL AC BioMax Insert 1-Pack - Biological Aquarium Filter Media for Fish Tanks
3 sizes
(20)
$2.99
$6.99
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Top Fin® Pro Power Filter Media Pack for Aquariums - 30-110 Gallon
4 sizes
(46)
$7.99
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Fluval® Quick Clear Water Polishing Pad 306/307/406/407 - 6PK
(18)
$10.99
$11.59
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Tetra® Whisper Bio-Bag Disposable Filter Cartridge - Biological Aquarium Filter Media
2 sizes
(154)
$6.47
$8.99
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Fluval® UltraGrade Carbon - Aquarium Filter Media
(10)
$14.99
$15.99
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Marineland® Rite Size Emperor Power Filter Cartridge - Replacement Aquarium Filter Media
(33)
$12.77
$16.99
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Top Fin® Universal Granular Activated Carbon U-Media - 40 oz
(21)
$13.29
$19.99
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Top Fin® Retreat™ RF-S Filter Cartridges for Fish Tanks - 6 Count
(106)
$9.99
$15.99
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Aqueon® QuietFlow Replacement Aquarium Filter Cartridges for Fish Tank Filters
2 sizes
(199)
$17.95
$19.99
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Fluval® FX5 Filter Foam Inserts Aquarium Filter Media for Fish Tank Filters
(7)
$24.99
$22.99
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FLUVAL Bio-Foam Filter Insert 1-Pack - Biological Aquarium Filter Media for Fish Tanks
4 sizes
(14)
$3.49
$3.99
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Top Fin® Universal Ceramic Rings - Aquarium Filter Media - 2 Count
(10)
$2.29
$3.99
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Top Fin® Filter Media Bag for Aquariums - Small-Large
2 sizes
(74)
$1.99
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Aqueon® Replacement Filter Cartridges Large - 6 Pack - Replacement Aquarium Filter Media
(112)
$20.95
$24.99
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Top Fin® Nitrate & Nitrite Filter Pad - Aquarium Media
(0)
$7.99
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Fluval FX2 Bio Foam Max - Biological Aquarium Filter Media for Fish Tanks
(1)
$19.99
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Fluval Bio-FX Biological Filter Media - 5 L for Aquariums
(6)
$49.99
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Seachem® Matrix™ - Aquarium Filter Media
3 sizes
(20)
$8.79
$7.99
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Top Fin® Ceramic Rings - Aquarium Filter Media - 26.4 oz
(16)
$6.99
$13.99
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Top Fin® Retreat Filter Cartridge for Fish Tanks - 3 Count
2 sizes
(54)
$8.99
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+ 2 more
Top Fin® CN-L Corner Filter Cartridges for Fish Tanks - 3 Count
(15)
$8.99
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Fluval Phosphate Resin Infused Pads - Aquarium Filter Media for Fish Tanks
(6)
$10.99
$11.59
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Fluval® 207/307 & 206/306 Bio-Foam Max Filter Pad - 2pk - Biological Aquarium Filter Media
(6)
$4.49
$7.99
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Top Fin® Filter Fiber Pad U-Media for Aquariums
(56)
$6.19
$11.99
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Fluval® BioMax Media for Biological Aquarium Filters
(20)
$19.99
$22.99
Save 40% On First Autoship Order of Aquatic Filter Media
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
+ 2 more
Marineland® Penguin Rite Size B Power Filter Cartridges for Fish Tank Filters
(36)
$17.57
$19.99
Save 40% On First Autoship Order of Aquatic Filter Media
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
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Keeping your fish tank clean is a vital part of supporting the health and wellbeing of your fish. That means making sure that your tank’s filter is functioning properly. Shop PetSmart’s selection of fish tank filter media to find the best fit for your tank or aquarium. At PetSmart, you’ll find a wide variety of filter media for aquariums of every size, as well as the filter cartridges, foam pads, bulk media, filter bags, pre-filter accessories and other parts you need to keep their aquarium clean and healthy.
Looking for something other than fish tank filter media or filter cartridges? At PetSmart, we make sure it’s easy for you to find all the best aquarium filters and pump supplies for your fish tank or aquarium, including:
While you’re here, shop our collection of the best fish supplies like fish food, feeders and more for your fishy friends!
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see what items are eligible.